Preserve transaction filters and transaction focus across page visits (#1733)

* Preserve transaction filters across page visits

* Preserve params when per_page is updated

* Autofocus selected transactions

* Lint fixes

* Fix syntax error

* Fix filter clearing

* Update e2e tests for new UI

* Consolidate focus behavior into concern

* Lint fixes

app/helpers/application_helper.rb

@@ -176,24 +176,4 @@ module ApplicationHelper
 
     cookies[:admin] == "true"
   end
-
-  def custom_pagy_url_for(pagy, page, current_path: nil)
-    if current_path.blank?
-      pagy_url_for(pagy, page)
-    else
-      uri = URI.parse(current_path)
-      params = URI.decode_www_form(uri.query || "").to_h
-
-      # Delete existing page param if it exists
-      params.delete("page")
-      # Add new page param unless it's page 1
-      params["page"] = page unless page == 1
-
-      if params.empty?
-        uri.path
-      else
-        "#{uri.path}?#{URI.encode_www_form(params)}"
-      end
-    end
-  end
 end